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You can store documents into MongoDB using the insert() method. This method accepts a JSON document as a parameter.
Syntax
Following is the syntax of the insert method.
>db.COLLECTION_NAME.insert(DOCUMENT_NAME)
Example
> use mydb
switched to db mydb
> db.createCollection("sample")
{ "ok" : 1 }
> doc1 = {"name": "Ram", "age": "26", "city": "Hyderabad"}
{ "name" : "Ram", "age" : "26", "city" : "Hyderabad" }
> db.sample.insert(doc1)
WriteResult({ "nInserted" : 1 })
>
Similarly, you can also insert multiple documents using the insert() method.
> use testDB
switched to db testDB
> db.createCollection("sample")
{ "ok" : 1 }
> data = [
{"_id": "1001", "name": "Ram", "age": "26", "city": "Hyderabad"},
{"_id": "1002", "name" : "Rahim", "age" : 27, "city" : "Bangalore" },
{"_id": "1003", "name" : "Robert", "age" : 28, "city" : "Mumbai" }
]
[
{"_id" : "1001", "name" : "Ram", "age" : "26", "city" : "Hyderabad"},
{"_id" : "1002", "name" : "Rahim", "age" : 27, "city" : "Bangalore"},
{"_id" : "1003", "name" : "Robert", "age" : 28, "city" : "Mumbai"}
]
> db.sample.insert(data)
BulkWriteResult({
"writeErrors" : [ ],
"writeConcernErrors" : [ ],
"nInserted" : 3,
"nUpserted" : 0,
"nMatched" : 0,
"nModified" : 0,
"nRemoved" : 0,
"upserted" : [ ]
})
>
Creating a Collection Using Python
Pymongo provides a method named insert_one() to insert a document in MangoDB. To this method, we need to pass the document in dictionary format.
Example
Following example inserts a document in the collection named example.
from pymongo import MongoClient
#Creating a pymongo client
client = MongoClient(''localhost'', 27017)
#Getting the database instance
db = client[''mydb'']
#Creating a collection
coll = db[''example'']
#Inserting document into a collection
doc1 = {"name": "Ram", "age": "26", "city": "Hyderabad"}
coll.insert_one(doc1)
print(coll.find_one())
Output
{''_id'': ObjectId(''5d63ad6ce043e2a93885858b''), ''name'': ''Ram'', ''age'': ''26'', ''city'': ''Hyderabad''}
To insert multiple documents into MongoDB using pymongo, you need to invoke the insert_many() method.
from pymongo import MongoClient
#Creating a pymongo client
client = MongoClient(''localhost'', 27017)
#Getting the database instance
db = client[''mydb'']
#Creating a collection
coll = db[''example'']
#Inserting document into a collection
data = [
{"_id": "101", "name": "Ram", "age": "26", "city": "Hyderabad"},
{"_id": "102", "name": "Rahim", "age": "27", "city": "Bangalore"},
{"_id": "103", "name": "Robert", "age": "28", "city": "Mumbai"}
]
res = coll.insert_many(data)
print("Data inserted ......")
print(res.inserted_ids)
Output
Data inserted ...... [''101'', ''102'', ''103'']
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